﻿using System;
using System.Diagnostics;
using System.Globalization;
using System.Runtime.InteropServices;
using System.ComponentModel.Design;
using Microsoft.Win32;
using Microsoft.VisualStudio;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio.OLE.Interop;
using Microsoft.VisualStudio.Shell;
using WebDevUtilities.CssSpriteGenerator.Resources;
using System.Windows;

namespace WebDevUtilities.CssSpriteGenerator.Logic
{
    /// <summary>
    /// This is the class that implements the package exposed by this assembly.
    ///
    /// The minimum requirement for a class to be considered a valid package for Visual Studio
    /// is to implement the IVsPackage interface and register itself with the shell.
    /// This package uses the helper classes defined inside the Managed Package Framework (MPF)
    /// to do it: it derives from the Package class that provides the implementation of the 
    /// IVsPackage interface and uses the registration attributes defined in the framework to 
    /// register itself and its components with the shell.
    /// </summary>
    // This attribute tells the PkgDef creation utility (CreatePkgDef.exe) that this class is
    // a package.
    [PackageRegistration(UseManagedResourcesOnly = true)]
    // This attribute is used to register the information needed to show this package
    // in the Help/About dialog of Visual Studio.
    [InstalledProductRegistration("#110", "#112", "1.0", IconResourceID = 400)]
    // This attribute is needed to let the shell know that this package exposes some menus.
    [ProvideMenuResource("Menus.ctmenu", 1)]
    // This attribute registers a tool window exposed by this package.
    [ProvideToolWindow(typeof(CssSpriteGeneratorToolWindow))]
    [Guid(GuidList.guidWebDevUtilitiesPkg)]
    public sealed class CssSpriteGeneratorPackage : Package
    {
        /// <summary>
        /// Default constructor of the package.
        /// Inside this method you can place any initialization code that does not require 
        /// any Visual Studio service because at this point the package object is created but 
        /// not sited yet inside Visual Studio environment. The place to do all the other 
        /// initialization is the Initialize method.
        /// </summary>
        public CssSpriteGeneratorPackage()
        {
            Debug.WriteLine(string.Format(CultureInfo.CurrentCulture, "Entering constructor for: {0}", this.ToString()));
        }

        /// <summary>
        /// This function is called when the user clicks the menu item that shows the 
        /// tool window. See the Initialize method to see how the menu item is associated to 
        /// this function using the OleMenuCommandService service and the MenuCommand class.
        /// </summary>
        private void ShowCssSpriteGeneratorToolWindow(object sender, EventArgs e)
        {
            // Get the instance number 0 of this tool window. This window is single instance so this instance
            // is actually the only one.
            // The last flag is set to true so that if the tool window does not exists it will be created.
            ToolWindowPane window = this.FindToolWindow(typeof(CssSpriteGeneratorToolWindow), 0, true);
            if ((null == window) || (null == window.Frame))
            {
                throw new NotSupportedException(Common.CanNotCreateWindow);
            }
            IVsWindowFrame windowFrame = (IVsWindowFrame)window.Frame;
            Microsoft.VisualStudio.ErrorHandler.ThrowOnFailure(windowFrame.Show());
        }

        private void CssSpriteGeneratorQuickCmd(object sender, EventArgs e)
        {
            // Get the instance number 0 of this tool window. This window is single instance so this instance
            // is actually the only one.
            // The last flag is set to true so that if the tool window does not exists it will be created.
            ToolWindowPane window = this.FindToolWindow(typeof(CssSpriteGeneratorToolWindow), 0, true);
            if ((null == window) || (null == window.Frame))
            {
                throw new NotSupportedException(Common.CanNotCreateWindow);
            }
            IVsWindowFrame windowFrame = (IVsWindowFrame)window.Frame;
            Microsoft.VisualStudio.ErrorHandler.ThrowOnFailure(windowFrame.Show());
        }

        /////////////////////////////////////////////////////////////////////////////
        // Overridden Package Implementation
        #region Package Members

        /// <summary>
        /// Initialization of the package; this method is called right after the package is sited, so this is the place
        /// where you can put all the initialization code that rely on services provided by VisualStudio.
        /// </summary>
        protected override void Initialize()
        {
            Debug.WriteLine(string.Format(CultureInfo.CurrentCulture, "Entering Initialize() of: {0}", this.ToString()));
            base.Initialize();

            // Add our command handlers for menu (commands must exist in the .vsct file)
            OleMenuCommandService mcs = GetService(typeof(IMenuCommandService)) as OleMenuCommandService;
            if (null != mcs)
            {
                // Create the command for the menu item.
                CommandID toolsMenuCmdID = new CommandID(GuidList.guidWebDevUtilitiesCmdSet, (int)PkgCmdIDList.cmdidCssSpriteGeneratorToolsMenu);
                MenuCommand toolsMenuCmd = new MenuCommand(ShowCssSpriteGeneratorToolWindow, toolsMenuCmdID);
                mcs.AddCommand(toolsMenuCmd);
                // Create the command for the tool window
                CommandID solutionExplorerMenuCmdId = new CommandID(GuidList.guidWebDevUtilitiesCmdSet, (int)PkgCmdIDList.cmdidCssSpriteGeneratorSolutionExplorerMenu);
                MenuCommand solutionExplorerMenuCmd = new MenuCommand(ShowCssSpriteGeneratorToolWindow, solutionExplorerMenuCmdId);
                mcs.AddCommand(solutionExplorerMenuCmd);
                // Test Command
                CommandID solutionExplorerMenuQuickCmdId = new CommandID(GuidList.guidWebDevUtilitiesCmdSet, (int)PkgCmdIDList.cmdidCssSpriteGeneratorQuickSolutionExplorerMenu);
                MenuCommand solutionExplorerMenuQuickCmd = new MenuCommand(CssSpriteGeneratorQuickCmd, solutionExplorerMenuQuickCmdId);
                mcs.AddCommand(solutionExplorerMenuQuickCmd);
                // Test Command
                CommandID viewMenuCmdId = new CommandID(GuidList.guidWebDevUtilitiesCmdSet, (int)PkgCmdIDList.cmdidCssSpriteGeneratorViewMenu);
                MenuCommand viewMenuCmd = new MenuCommand(ShowCssSpriteGeneratorToolWindow, viewMenuCmdId);
                mcs.AddCommand(viewMenuCmd);
            }
        }
        #endregion

        private void TestCall(object sender, EventArgs e)
        {
            IVsUIShell uiShell = (IVsUIShell)GetService(typeof(SVsUIShell));
            Guid clsid = Guid.Empty;
            int result;
            Microsoft.VisualStudio.ErrorHandler.ThrowOnFailure(uiShell.ShowMessageBox(
                       0,
                       ref clsid,
                       "Test",
                       string.Format(CultureInfo.CurrentCulture, "Inside {0}.MenuItemCallback()", this.ToString()),
                       string.Empty,
                       0,
                       OLEMSGBUTTON.OLEMSGBUTTON_OK,
                       OLEMSGDEFBUTTON.OLEMSGDEFBUTTON_FIRST,
                       OLEMSGICON.OLEMSGICON_INFO,
                       0,        // false
                       out result));
        }

    }
}
